On the car shots: I don't find the fake background blurring/double-image attractive. It's a distraction. I hope that was just an experimental series.
I have no problem with manipulation. Feel free to dodge/burn and even rub all you want, when it is called-for.
I guess now I'm obliged the include a car photo. I'll toss in 3 more to boot. Yes, they were all taken with an iPhone 7S. (Now have an X.) Two are manipulated in one way or another, two are not. They were all shots taken at a moment when I saw a picture, and so I used the camera that I had.
If I were using a camera for anything serious, though - to make a living or even as a serious hobby or a sideline - I'd use a better camera. For me, probably a mirrorless.
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Is shooting raw images overrated?